Cisco Cisco 2106 Wireless LAN Controller
4
Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 6.0.188.0
OL-31336-01
New Features
New Features
The following new features are available in controller software release 6.0.188.0.
Note
Refer to the Cisco Wireless LAN Controller Configuration Guide, Release 6.0 for more details and
configuration instructions.
configuration instructions.
AP Image Predownload
This feature allows you to download the upgrade image to the controller, then download the image to the
access points while the network is still up. A new CLI allows you to specify the boot image for both
devices and to reset the access points when the controller resets.
access points while the network is still up. A new CLI allows you to specify the boot image for both
devices and to reset the access points when the controller resets.
Ability to Limit AP Transmit Power
You use this feature to configure the maximum or minimum transmitting power limits that will used by
dynamic power assignment for a given radio.
dynamic power assignment for a given radio.
RRM will chose the closest power level avaible on the radio when using these configured limits. For
example, if you configure a maximum transmit power of 11 dBm, then no access point would transmit
above 11 dBm unless the access point is configured manually.
example, if you configure a maximum transmit power of 11 dBm, then no access point would transmit
above 11 dBm unless the access point is configured manually.
RRM Fixes for Medical Devices
This feature improves the way that QoS interacts with the RRM scan defer feature. In deployments with
certain power-save clients, you sometimes need to defer RRM’s normal off-channel scanning to avoid
missing critical information from low-volume clients (for example, medical devices that use power-save
mode and periodically send telemetry information).
certain power-save clients, you sometimes need to defer RRM’s normal off-channel scanning to avoid
missing critical information from low-volume clients (for example, medical devices that use power-save
mode and periodically send telemetry information).
You can use a client’s WMM UP marking to tell the access point to defer off-channel scanning for a
configurable period of time if it receives a packet marked UP.
configurable period of time if it receives a packet marked UP.
Use this controller CLI command to configure this feature for a sepcific WLAN:
config wlan channel-scan defer-priority priority [enable | disable] WLAN-id
where priority = 0 through 7 for user priority (this value should be set for 6 on the client and on the
WLAN).
WLAN).
Use this command to configure the amount of time that scanning will be deferred following an UP packet
in the queue:
in the queue:
config wlan channel-scan defer-time msec WLAN-id
Enter the time value in miliseconds (ms); the valid range is 100 (default) to 60000 (60 seconds). This
setting should match the requirements of the equipment on your wireless LAN.
setting should match the requirements of the equipment on your wireless LAN.
You can also configure this feature on the controller GUI by selecting WLANs, and either editing an
existing WLAN or creating a new one. On the WLANs > Edit page, click the Advanced tab. Under Off
Channel Scanning Defer, select the scan defer priorities and enter the defer time in milliseconds.
existing WLAN or creating a new one. On the WLANs > Edit page, click the Advanced tab. Under Off
Channel Scanning Defer, select the scan defer priorities and enter the defer time in milliseconds.